HCSGD entry for GLB1


1. General information

Official gene symbolGLB1
Entrez ID2720
Gene full namegalactosidase, beta 1
Other gene symbolsEBP ELNR1 MPS4B
Links to Entrez GeneLinks to Entrez Gene

2. Neighbors in the network

color bar
This gene isn't in PPI subnetwork.

3. Gene ontology annotation

GO ID

GO term

Evidence

Category

GO:0004553Hydrolase activity, hydrolyzing O-glycosyl compoundsIEAmolecular_function
GO:0004565Beta-galactosidase activityIEA TASmolecular_function
GO:0005515Protein bindingIPImolecular_function
GO:0005764LysosomeIEAcellular_component
GO:0005975Carbohydrate metabolic processIEA TASbiological_process
GO:0006027Glycosaminoglycan catabolic processTASbiological_process
GO:0006665Sphingolipid metabolic processTASbiological_process
GO:0006687Glycosphingolipid metabolic processTASbiological_process
GO:0016936Galactoside bindingIEAmolecular_function
GO:0019388Galactose catabolic processIEAbiological_process
GO:0030203Glycosaminoglycan metabolic processTASbiological_process
GO:0042339Keratan sulfate metabolic processTASbiological_process
GO:0042340Keratan sulfate catabolic processTASbiological_process
GO:0043202Lysosomal lumenTAScellular_component
GO:0044281Small molecule metabolic processTASbiological_process
GO:0048471Perinuclear region of cytoplasmIEAcellular_component
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4. Expression levels in datasets

  • Meta-analysis result

p-value upp-value downFDR upFDR down
0.94558741310.41247133090.99999024731.0000000000

  • Individual experiment result
    ( "-" represent NA in the specific microarray platform )

Data sourceUp or downLog fold change
GSE11954--
GSE13712_SHEAR--
GSE13712_STATIC--
GSE19018--
GSE19899_A1--
GSE19899_A2--
PubMed_21979375_A1--
PubMed_21979375_A2--
GSE35957--
GSE36640--
GSE54402--
GSE9593--
GSE43922--
GSE24585--
GSE37065--
GSE28863_A1Up0.2837861270
GSE28863_A2Up0.0207793049
GSE28863_A3Down-0.5049431232
GSE28863_A4Down-0.3376282443
GSE48662Up0.1902698334

5. Regulation relationships with compounds/drugs/microRNAs

  • Compounds

Not regulated by compounds

  • Drugs

Not regulated by drugs

  • MicroRNAs

    • mirTarBase

MiRNA_name

mirBase ID

miRTarBase ID

Experiment

Support type

References (Pubmed ID)

hsa-miR-155-5pMIMAT0000646MIRT020509ProteomicsFunctional MTI (Weak)18668040
hsa-let-7b-5pMIMAT0000063MIRT032234ProteomicsFunctional MTI (Weak)18668040
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    • mirRecord
No target information from mirRecord

6. Text-mining results about the gene

Gene occurances in abstracts of cellular senescence-associated articles: 6 abstracts the gene occurs.


PubMed ID of the article

Sentenece the gene occurs

26391655Tissue-specific deletion of the essential autophagy gene Atg7 in murine VSMCs (atg7-/- VSMCs) caused accumulation of SQSTM1/p62 and accelerated the development of stress-induced premature senescence as shown by cellular and nuclear hypertrophy, CDKN2A-RB-mediated G1 proliferative arrest and senescence-associated GLB1 activity
26391655Lesions of VSMC-specific atg7 knockout mice were characterized by increased total collagen deposition, nuclear hypertrophy, CDKN2A upregulation, RB hypophosphorylation, and GLB1 activity, all features typical of cellular senescence
25876105Lysosomal-beta-galactosidase (GLB1) hydrolyzes beta-galactose from glycoconjugates and is the origin of senescence-associated beta-gal activity (SA-beta-gal)
25876105Using a new GLB1 antibody, senescence biology was investigated in prostate cancer (PCa) tissues
25876105EXPERIMENTAL DESIGN: In vitro characterization of GLB1 was determined in primary prostate epithelial cell cultures passaged to replicative senescence and in therapy-induced senescence in PCa lines using chemotherapeutic agents
25876105FFPE tissue microarrays were subjected to immunofluorescent staining for GLB1, Ki67 and HP1gamma and automated quantitative imaging initially using AQUA in exploratory samples and Vectra in a validation series
25876105RESULTS: GLB1 expression accumulates in replicative and induced senescence and correlates with senescent morphology and P16 (CDKN2) expression
25876105In tissue arrays, quantitative imaging detects increased GLB1 expression in high-grade prostatic intraepithelial neoplasia (HGPIN), known to contain senescent cells, and cancer compared to benign prostate tissues (p<0
25876105Within primary tumors, elevated GLB1 associates with lower T stage (p=0
25876105Increased GLB1 stratifies better PSA-free survival in intermediate grade PCa (0
25876105Tissues that elaborate higher GLB1 display increased uniformity of expression
25876105CONCLUSION: Increased GLB1 is a valuable marker in formalin-fixed paraffin-embedded (FFPE) tissues for the senescence-like phenotype and associates with improved cancer outcomes
23989658Combined treatment of MTOR inhibitor and radiation induce heterochromatin formation, an irreversible growth arrest and an increase of senescence-associated GLB1 (beta-galactosidase) activity, which appear to result from a constant activation of TP53 and a restoration in the activity of retinoblastoma 1 protein (RB1)-E2F1
22911222The increased expression of the senescence-related proteins Glb1, the cyclin-dependent kinase inhibitor p27(Kip1) and chromatin-regulating heterochromatin protein 1gamma (HP1gamma) were detected in LNCaP cells after AD in vitro by immunoblot and immunofluorescence microscopy
22911222Immunohistochemical analysis of human prostate tumors removed after AD shows similar induction of Glb1, HP1gamma and decreased KI-67
21749859Our results show that GAPDH-depleted cells establish senescence phenotype, as revealed by proliferation arrest, changes in morphology, SA-beta-galactosidase staining, and more than 2-fold up-regulation of senescence-associated genes DEC1 and GLB1
16626397We demonstrate here that SA-beta-gal activity is expressed from GLB1, the gene encoding lysosomal beta-D-galactosidase, the activity of which is typically measured at acidic pH 4
16626397In addition, late passage normal fibroblasts expressing small-hairpin interfering RNA that depleted GLB1 mRNA underwent senescence but failed to express SA-beta-gal
16626397GLB1 mRNA depletion also prevented expression of SA-beta-gal activity in HeLa cervical carcinoma cells induced to enter a senescent state by repression of their endogenous human papillomavirus E7 oncogene
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